Stanchion lock



Feb, 20, 192.3, 1,446,198 R MlNSHULL STANCHION LOCK Filed May 27, 1921 Inventor By W,

ROBERT MINSHULL, OFVJ'ATERLOO, WISGONSINQ STANCHIQN LOCK.

Application filed ma 27,

To all 107mm it may concern:

Be it known that l, Ronnntr ll/irnsnont, a citizen of the United States. and resident of W'atorloo in the county of Jefferson and State of Wisconsin, have invented new and useful Improvements in Stanchion Lo; of which the following is a description, 1 erence being bad to the accompanyii drawings, which are a oi? this spa nation.

This invention relates to stanchion locks particularly to that type of stanchion which in combination with an upper substantially horizontally relatively fixed member pro vided wth two vertical members, one of which is fixed and the other of which ispivotally connected at the bottom and adapted to swing laterally into open and closed poition. l

The primary object of this invention is to provide a lock forthe swinging member of the stanchion of simple and strong construction which will operate automatically to 1001: the swinging member in its closed position when the latter is moved theii'eto andv which, furthermore, will reliably and eilectively maintain said swinging member in its locked position against the strains set up in the stanchion members by the animal rubbing and pushing thereagainst.

it further object of the invention is to provide improved means for releasing the lock which is preferably of such construction that it may be conveniently operated from either side of the stanchion.

The invention consists in the novel constructions, arrangement, and devices to be hereinafter described and claimedfor rying out the above stated objects and such other objects as will appear from the fol-- lowing description of certain preferred em bodiments illustrated in the accompanying drawings, wherein- Fig. 1 is a side elevational view of a lock embodying the principles of the inventioin certain parts thereof being shown in section and as applied to a stanchion of the type mentioned only certain fragmentary portions thereof being shown;

Fig. 2 is a sectional view taken 2-2 of Fig. l; and 4 Fig. 3 is a sectional view taken 011 the line 33 of Fig. 1.

Like characters of reference designate like parts in the several views.

In the drawings 5 represents the upper substantially horizontally relatively fixed on the line 3.821. Serial No. 472,952.

pivot 1.1 and is adapted to slide in the slot, oi the member 5 when the swinging m 6 is moved laterally. A. pair of outs! ding ears or lugs 12} are provided on and adjacent the. free end of the latch to limit downward movements thereof. The lower portion of the collar 8 extends across the slot 7, as clearly shown in Fig. l. and the free endof the latch is beveled at lI-l so thathe latch will easily ride. over the catch i the swingingfmeinberfiis moved into lLS closed position. T A. pair of down we. projecting lugs'll are provided on the under side of the latch n'i,embei' which are adopted to bear againstthe respective sides or the catch, as clearly shown in Fig. lowhen the. latch is in its locking position.

The means for releasing the latch memher from engagement with the catch is mounted on a transverse member, designated as a whole by the reference numeral 15, this member being journaled ina pair of back wardly extending lugs ldforrned; on the swinging member .6. vThe member 15 comprises a central rod or holding member 1 on which a pairof spaced lmshings 18 are loosely mounted. the bushings being held in position by washers 19 hearing against the outerends of the bushings and effectively held thereagainst by upsetting the extremities oi the rod member 17, shown at 20. see Fig. .2. A finger 21 is loosely mounted onthe member 17 between the bushings 18. The inner ends oii' the bushings bear against the respective sides of the finger. In the embodiment shown in Figs. 1 to of the drawings interlockingmeans are provided between the finger and the bushings, the finger being provided on each side with a pair will clearly be apparent that when the bushings are'rotated in a counter clockwise direction the finger 21 will bear down on the rear end of the latch member and lift it out of engagement with the catch. To facilitate rotation of the bushings hand wheels or disks 25 are mounted on the outer ends thereof and rigidly connected thereto by upsetting portions of the ends of the bushings into recesses 25 formed in the disks.

To prevent the latch from beingjarred out of its locking position by the animals rubbing or pressing against the stanchion members a spring-27' is preferably provided to hold the latch in looking engagement with the catch. The spring ispreferably coiled about the pivot member 11, the end 28 thereof being fixed to the latch and the end :29 thereof? being fixed to the stanchion member 6.

"In order to prevent strain due to the animal rubbing and pressing against the stanchion member from being transmitted to the latch member the stanchion member 6 is preferably provided with a pair of upstanding arms 32 which are adapted to slidingly engage the respective sides of the tubular member 5, see Fig. 2.

If desired a plug may the member 5 tolimit outward movement of the swingingmember 6, this plug co-operating with the lugs l2provided on the free end. of the latch and therefore prevents the latch from slipping entirely out of the slot 7. By securing the collar 8 at difierent; points on the member 5 the stanchion may be accommodated to animals of different sizes. From the foregoing description it will be apparent that an automatically operating lock of simple and strong construction has been provided which may be conveniently released from either side voi thestanchion.

I claim: 1 v 1. In combination a laterally swingingly mounted stanchion member, an upper horibe secured to r zontal fixed stanchion member,. a catch on said fixed member, a latch pivotally mounted on said swingingmember, a transverse member mounted-in and adjacent the upper end of said swinging member; a finger on said transverse member and operatively connected with said latch, said transverse member comprising a central member and a pair of bushings on said central member, said bushings being loosely mounted on said central member so that their inner ends bear against the respective sides of sa-idilatch, and interlocking means on. said finger and the inner ends oi said bushing to insure turning of said finger and-lifting ofthe latch when said bushing isrotated in the proper direction.

2. In combination a laterally swingingly mounted stanchion member, an upper horizontal fixed, tubular stanchion member, said tubular member having a longitudinally extending slot in its under side, a catch on said tubular member, a latch pivotally mounted on said, swinging member and adapted to slide in said slot and into holding engagement with saidcatch when said swinging member is moved to closed position, a transverse member journaled in and adjacent the upper end of said swinging member a fingeron sa1d transverse member and operatii' ely connected with said'latch said transverse member comprising a central memberand a pair of bushings on said central member said bushings being loosely mounted on "said centralmember so. that their inner ends bear against. the respective sides of said finger, and interlocking means on said finger and the inner ends of said bushings to insure turning of said finger and lifting of the latch when said bushings are rotated in the proper'dlrection;

ture.

nonnRT-MmsnnLi- In testimony whereofi I alfix my signa 

